import { Feature } from 'geojson';
import { SpatialGeometry } from './utils';
import { DistanceUnit } from '@geoda/common';
/**
 * The options for getting the buffers
 */
export type GetBuffersOptions = {
    /**
     * The geometries to get the buffers See {@link SpatialGeometry}
     */
    geoms: SpatialGeometry;
    /**
     * The distance of the buffer, use with distanceUnit e.g. 100 KM or 10 mile
     */
    bufferDistance: number;
    /**
     * The unit of the distance. See {@link DistanceUnit}
     */
    distanceUnit: DistanceUnit;
    /**
     * The number of points per circle. This determines the granularity of the buffer.
     * More points will result in a smoother buffer but will also increase the memory usage.
     */
    pointsPerCircle?: number;
};
/**
 * Get the buffers of the geometries
 *
 * ## Example
 * ```ts
 * const geoms = [
 *   {
 *     type: 'Feature',
 *     geometry: { type: 'Point', coordinates: [100, 0] },
 *   },
 * ];
 *
 * const buffers = await getBuffers({
 *   geoms: geoms,
 *   bufferDistance: 10,
 *   distanceUnit: DistanceUnit.Mile,
 *   pointsPerCircle: 10,
 * });
 * ```
 *
 * @param options The options for getting the buffers. See {@link GetBuffersOptions}
 * @returns The buffers of the geometries
 */
export declare function getBuffers({ geoms, bufferDistance, distanceUnit, pointsPerCircle, }: GetBuffersOptions): Promise<Feature<import("geojson").Geometry, import("geojson").GeoJsonProperties>[]>;